Climate and monthly weather forecast
Sun Valley, NV

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Weather in January

January, the same as December, is an icy winter month in Sun Valley, Nevada, with an average temperature varying between 24.4°F (-4.2°C) and 39.7°F (4.3°C). The average high-temperature during January is a still wintry 39.7°F (4.3°C), almost matching the conditions of the preceding month. Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Sun Valley, Nevada, with an average temperature fluctuating between 25.5°F (-3.6°C) and 41.7°F (5.4°C). Sun Valley ushers in February with an average high-temperature of a still wintry 41.7°F (5.4°C), showing a close resemblance to the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Sun Valley, Nevada, with an average temperature ranging between max 46.8°F (8.2°C) and min 30°F (-1.1°C). March experiences an average high-temperature of a chilly 46.8°F (8.2°C), barely different from February's 41.7°F (5.4°C). Weather in March »

Weather in April

April is a fresh spring month in Sun Valley, Nevada, with an average temperature fluctuating between 35.1°F (1.7°C) and 54.5°F (12.5°C). The shift into April is characterized by a subtle rise in the average high-temperature, transitioning from March's chilly 46.8°F (8.2°C) to a fresh 54.5°F (12.5°C). Weather in April »

Weather in May

May, the last month of the spring in Sun Valley, is a comfortable month, with an average temperature varying between 63.7°F (17.6°C) and 41.7°F (5.4°C). As Sun Valley, Nevada, transitions into May, the average high-temperature shows a change, moving from a fresh 54.5°F (12.5°C) in April to an enjoyable 63.7°F (17.6°C). Weather in May »

Weather in June

June, the first month of the summer in Sun Valley, is a moderately hot month, with an average temperature ranging between min 49.6°F (9.8°C) and max 75.7°F (24.3°C). A shift in the average high-temperature is noticeable in June, changing from an enjoyable 63.7°F (17.6°C) in May to a moderately hot 75.7°F (24.3°C). Weather in June »

Weather in July

July, like June, in Sun Valley, Nevada, is another warm summer month, with an average temperature varying between 85.5°F (29.7°C) and 57.2°F (14°C). The warmest temperatures occur during July, when averages reach a peak of 85.5°F (29.7°C) and a low of 57.2°F (14°C). Weather in July »

Weather in August

August, the last month of the summer in Sun Valley, is another warm month, with an average temperature varying between 82.9°F (28.3°C) and 56.3°F (13.5°C). Sun Valley's August reports an average high-temperature of a still warm 82.9°F (28.3°C), exhibiting a minor difference from July. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Sun Valley, Nevada, with an average temperature fluctuating between 74.8°F (23.8°C) and 49.8°F (9.9°C). Sun Valley's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's warm 82.9°F (28.3°C) to a still moderately hot 74.8°F (23.8°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Sun Valley, Nevada, with an average temperature fluctuating between 60.6°F (15.9°C) and 39.9°F (4.4°C). During the transition into October, Sun Valley observes a decrease in the average high-temperature, falling from a warm 74.8°F (23.8°C) in September to a mild 60.6°F (15.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Sun Valley, is also a frosty month, with temperature in the range of an average high of 48.4°F (9.1°C) and an average low of 30.4°F (-0.9°C). The shift from October to November involves a decrease in the average high-temperature, from a moderate 60.6°F (15.9°C) to a chilly 48.4°F (9.1°C). Weather in November »

Weather in December

December, the first month of the winter in Sun Valley, is also an icy month, with an average temperature ranging between min 23.4°F (-4.8°C) and max 37.8°F (3.2°C). The coldest month is December, with an average high-temperature of 37.8°F (3.2°C) and an average low-temperature of 23.4°F (-4.8°C). Weather in December »
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month?

The most humid month is January, with an average relative humidity of 73%.

How many days does it rain?

In Sun Valley, during the entire year, the rain falls for 68 days and collects up to 8.07" (205mm) of precipitation.

When does it snow?

January through May, September through December are months with snowfall.

How much does it snow?

In Sun Valley, during the entire year, snow falls for 33.2 days and aggregates up to 23.62" (600mm) of snow.

What are the months with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the wettest month in Sun Valley?

February is the month with the most rainfall. Rain falls for 6.5 days and accumulates 1.38" (35mm) of precipitation.

What is the snowiest month?

The month with the most snowfall is February, when snow falls for 6.6 days and typically aggregates up to 6.06" (154mm) of snow.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow?

In Sun Valley, snow does not fall in June through August.

When are the longest days in Sun Valley?

The month with the longest days is June, with an average of 14h and 54min of daylight.

When is the highest UV index?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What is the warmest month?

The temperatures in Sun Valley reach their highest averages in July, with highs of 85.5°F (29.7°C) and lows of 57.2°F (14°C).

What is the least humid month?

The months with the lowest humidity are July and August, with an average relative humidity of 28%.

What is the driest month?

July and August are months with the least rain when the rain falls for 2.4 days and typically aggregates up to 0.08" (2mm) of rain.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 12.2h of sunshine.

What month is the coldest?

During the coldest month in Sun Valley, December, temperatures average a high of 37.8°F (3.2°C) and a low of 23.4°F (-4.8°C).

What is the month with the shortest days?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

What is the month with the least sunshine in Sun Valley?

The month with the least sunshine is December, with an average of 6.1h of sunshine.

Average temperature
Sun Valley, NV

Average temperature - Sun Valley, NV

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (37.8°F).

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is December (23.4°F).

Average pressure
Sun Valley, NV

Average pressure - Sun Valley, NV

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed
Sun Valley, NV

Average wind speed - Sun Valley, NV

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).

Average humidity
Sun Valley, NV

Average humidity - Sun Valley, NV

The month with the highest relative humidity is January (73%).
The months with the lowest relative humidity are July and August (28%).

Average rainfall
Sun Valley, NV

Average rainfall - Sun Valley, NV

The wettest month (with the highest rainfall) is February (1.38").
The driest months (with the least rainfall) are July and August (0.08").

Average rainfall days
Sun Valley, NV

Average rainfall days - Sun Valley, NV

The month with the highest number of rainy days is March (11.2 days).
The month with the least rainy days is August (1.8 days).

Average snowfall
Sun Valley, NV

Average snowfall - Sun Valley, NV

The month with the highest snowfall is February (6.06").
The months with the least snowfall are June, July and August (0").

Average snowfall days
Sun Valley, NV

Average snowfall days - Sun Valley, NV

The month with the highest number of snowfall days is December (7.8 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Sun Valley, NV

Average daylight / Average sunshine - Sun Valley, NV

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

Average sunshine days
Sun Valley, NV

Average sunshine days - Sun Valley, NV

The month with the most sunshine days is August (28.2 days).
The month with the least sunshine days is March (15.9 days).

Average UV index
Sun Valley, NV

Average UV index - Sun Valley, NV

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average visibility
Sun Valley, NV

Average visibility - Sun Valley, NV

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Sun Valley, Nevada, USA

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